Re: Shared code?
Dan Hatton <[email protected]> Wed, 16 Sep 2009 11:46:32 +0100 (BST)
| Newsgroups | gmane.comp.mathematics.axiom.user |
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| Message-ID | <alpine.LNX.2.00.0909161136450.6878@hydrographer.hatton.btinternet.co.uk> |
On Tue, 15 Sep 2009, Martin Rubey wrote: > You would need to say what you have done for a sensible answer. Well, you'll understand if I don't reveal everything in advance of submitting the paper. ;-) But the general form of it is this: Define five expressions, each of which is a Fourier series with terms up to and including second harmonic, in three position ordinates. Construct five equations using those five expressions, along with the differentiate() function and the addition, subtraction, and multiplication operators. Use the integrate() function to separate out individual Fourier components of the equations (now going up to third harmonics, because of the above-mentioned use of the multiplication operator). Use the solve() and subst() functions to solve the individual Fourier-component equations for the coefficients in the original expressions. -- Thanks, Dan